Eyeglasses.



No. 7I|,735. v Patented Oct. 2], I902.

' B. RISER.

' EYEGLASSE S.- (Applicatim? filed Nov. 26, 1900;)

' ("9 Model.)

UNITED STATES PATENT OFFICE.

RUDOLPH RISER, OECHIOAGO, ILLINOIS.

EYEG LASS ES.

SPECIFICATION forming part of Letters Patent No. 711,735, dated October0 Application filed November 26, 1900. Serial No. 37,765. (No model.)

To all whom it may concern:

Be it known that I, RUDOLPH RISER, a subject of the King of Sweden andNorway, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inEyeglasses, of-

which the following is a specification.

The present invention relates to that class of eyeglasses in which thebow-spring resembles the saddle-bridge of a pair of spectacles in thatit has a saddle which conforms more or less closely to the bridge of thenose, but may or may not have direct contact therewith.

The object of the invention, broadly stated, is to provide an improvedbow-sprin g for eyeglasses of this class, to the ends, first, that thedistance apart of the lenses or the posts, through the mediumof whichthe ends of the spring are attached to the lenses, may be adjustedwithout affecting the shape of the intermediate portion or saddle of thespring; second, that the spring may be made of suflicient length to giveit the necessary elasticity regardless of the distance apart of thelenses or the posts; third, that boxes or other attaching devices ofspecial construction shall not be necessary; fourth, that offset guardsmay be used and when used may be adjusted without affecting the shape ofthe bow-spring 0r disturbing the adjustment of the lenses with respectto each other, and, fifth, that the glasses as a whole shall be neat,compact, and ornamental.

To these ends the invention consists in the features of novelty that areherein described, and in order that it may be fully understood I willdescribe it with reference to the accompanying drawings, which are madea partof this specification, and in which- Figure 1 is a front elevationof a pair of eyeglasses embodying the invention. Fig. 2 is a plan viewthereof. Fig. 3 is a section thereof on the'line 3 3, Figs. 1 and 2.Fig. 4: is a perspective View of the bow-spring.

Arepresents the lenses, B the posts, and O the boxes, all of which maybe of any desired construction so long as the boxes are open at bottomfor admitting the ends of the bowspring D and the ends of the shanks orstems E of the ofiset guards. The intermediate portion of thebow-spring, herein called the saddle, is shaped to conform more or lessclosely to the bridge of the nose and may or may not have direct contacttherewith, and thereby aid in supporting the glasses. The saddle isdisposed in whatever plane may be necessary in order to bring it to aposition approximately at right angles to the bridge of the nose, andthis will generally be a plane forming angles with the plane of thelenses and a plane perpendicular to said plane of the lenses. As shownin the drawings, the saddle extends both forward and its intermediateportion spans the space between the boxes; but it will be understoodthat its shape in these respects may be altered to meet the requirementsof individual cases without departing from the spirit of the invention.The novelty in the bow-spring resides in the shape which is given itbetween its extremities and the ends of the saddle. Proceeding from eachend of the saddle the spring takes a course which is first outward ortoward the lenses, thence forward, thence inward, and thence upward, theportion between the forwardly and upwardly projecting portions beingtwisted, so that said forwardly and upwardly projecting portions lieapproximately at right angles to each other and the upwardly-projectingportion enters the bottom of the box, the end being perforated for thepassage of the customary fastening-screw. This construction enables thelenses to be adjusted, so as to bring them to the desired distance apartby bending those portions of the spring which are beyond the extremitiesof the saddle, and this may be done without affecting the shape of thesaddle proper. The stems or shanks E of the pads cross the ends of thesaddle and proceed downward and rearward far enough to bring the pads Fbeyond the extremities of the saddle, so that the guards may be adjustedindependently of the bow-spring.

What I claim as new, and desire to secure by Letters Patent, is-

1. As a new article of manufacture, a'bowspring for eyeglasses made of anarrow strip or ribbon of spring metal elastic throughout and having asaddle shaped to conform more or less closely to and adapted to restupon the bridge of the nose, and having beyond the extremities of thesaddle, portions which extend forward and portions extending upward,

and backward from the plane of the lenses,

the strip being given half-turns between the portions extending forwardand the portions extending upward, substantially as set forth.

2. As a new article of manufacture, abowspring for eyeglasses made of anarrow strip or ribbon of spring metal elastic throughout and having asaddle shaped to conform more or less closely to and adapted to restupon the bridge of the nose and having beyond the extremities of thesaddle, portions which ex tend outward and, beyond these, portions whichextend forward and, beyond these, portions which extend upward, thestrip being given half-turns between the portions extending forward andthe portions extending upward, substantially as set forth.

3. As a new article of manufacture, a bowspring for eyeglasses elasticthroughout and having asaddle shaped to conform more or less closely toand adapted to rest upon the bridge of the nose and having beyond theex- Ward and thence upward, the inwardly-pro- 5 jecting portion beingtwisted, substantially as set forth.

, RUDOLPH RISER.

Witnesses:

L. M. HOPKINS, BERTHA C. SIMS.

